Germany · Seed startup

Who invested in Langfuse

One round we have observed, with the 2 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

AI

Y Combinator: W23

Funding summaryUpdated 26 Oct 2026

$4.0Mraised across 1 round since 2023, from 1 source

Latest round
Seed, $4.0MNov 2023
Investors
2
See who backed them

The rounds

  1. Nov 2023

Founders and team

From Langfuse's own website: 3 founders, 9 on the team.

Marc KlingenCo-Founder & CEO
Clemens RawertCo-Founder & COO
Max DeichmannCo-Founder & CTO
  • Annabell SchäferProduct Marketing Engineer
  • Ben BachemProduct Engineer
  • Caleb SeelingSupport Engineer
  • Lotte VerheydenProduct Marketing Engineer
  • Lysander KieselProduct Engineer
  • Mark SalpeterProduct Engineer
  • Nimar BlumeProduct Engineer
  • Tobias KleselProduct Engineer
  • Tobias WochingerProduct Engineer

Everyone who backed them

Y CombinatorAccelerator1round

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Quick answers about Langfuse

Who invested in Langfuse?

Langfuse's investors include Y Combinator and Lightspeed Venture Partners.

How much has Langfuse raised?

Langfuse has raised $4.0M across 1 round since 2023.

When did Langfuse last raise?

Langfuse's most recent round was a Seed of $4.0M in Nov 2023.

What was Langfuse's biggest round?

Its most recent round, $4.0M in Nov 2023, is also its largest on record.

Who backed Langfuse first?

Langfuse's first round on record, in Nov 2023, was backed by Y Combinator and Lightspeed Venture Partners.

What stage is Langfuse at?

Langfuse's latest named round is a Seed, in Nov 2023.

Where is Langfuse based?

Langfuse is based in Germany.

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In the same sector, and raised in the last eighteen months.

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